STEREON Materials

STEREON Materials

STEREON Materials SE

Erfurt, Germany

Armour & Protection
Component Supplier, Contract Manufacturer
Profile last updated: May 10, 2026

About

STEREON Materials is a defense component supplier based in Erfurt, Germany working in armour & protection.

STEREON Materials SE, formerly QSIL SE, is a German specialist in high-performance materials, including technical ceramics, refractory metals and technical glass. The group operates sites in Germany and the United Kingdom and produces custom components such as ceramic insulators, vacuum feedthroughs, ceramic-metal brazed assemblies, ceramic sensor parts, valves, bearings, feed screws, circuit boards and porous glass filters. The company has a dedicated Aerospace, Defence & Government market segment and produces ceramic plates for ballistic protection. Its materials are also used in medical technology, semiconductors, photovoltaics and diagnostics.

Location

Erfurt, Germany

Legal name

STEREON Materials SE

VAT number

DE304926076

Focus areas

technical ceramicsrefractory metalstechnical glassceramic-metal brazingvacuum feedthroughsballistic protectionaerospacedefencegovernment

Languages

DEEN

Products & capabilities

Defense domains

Armour & Protection

Supply-chain role

Component SupplierContract Manufacturer

What they offer

HardwareComponentsManufacturing Services

Products

Platten für ballistischen Schutz

Ballistic protection plates

Ceramic plates for ballistic protection.

Keramische Vakuumdurchführungen

Vacuum feedthrough

Ceramic vacuum feedthroughs for high-voltage applications, with a helium leak rate of 10^-9 mbar·l/s.

Keramische Isolatoren mit hochohmiger Beschichtung

High-voltage insulator

Ceramic insulators with a high-resistance coating that dissipates surface charges in vacuum high-voltage environments.

Keramik-Metall-Lötverbindungen

Ceramic-metal brazed assembly

Metallised ceramic-to-metal brazed joints for high-vacuum-tight components.

Keramische Sensorbauteile

Ceramic sensor component

Alumina-based sensor parts, including pressure sensor membranes.

Keramische Ventile und Armaturen

Ceramic valve

Ceramic valves and valve components resistant to wear and temperatures up to 1700 °C.

Keramische Leiterplatten

Ceramic circuit board

Alumina ceramic printed circuit boards with high thermal conductivity for laser and high-performance applications.

ROBU Glasfilterelemente

Porous glass filter

Porous technical glass filter elements with defined pore size.

Wälz- und Gleitlager

Ceramic bearing

Full-ceramic rolling bearings and sliding bearings for corrosive, abrasive and high-temperature use.

Keramische Förderschnecken

Ceramic feed screw

Ceramic feed screws for abrasive or corrosive materials in pumps, extruders and injection moulding machines.

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